Exam 10: Object-Oriented Programming

Special methods are methods that are automatically called in Python.

_______________ is a fundamental feature of object-oriented programming languages that allows for information hiding.

There is no means in Python for accessing the private members of a class.

Name mangling occurs when the identifiers within a class are not sufficiently distinct.

Match the descriptions with their terms: -indicates the number of objects that may be associated

________ and _________ are methods providing controlled access to private instance variables.

Which of the following is the correct way to access private instance variable x in object a of type ClassA?

______________________ is used in Python to indicate that particular members of a class are to be considered private.

For a class named FullName that contains an __init__ method that is passed a first and last name to construct a new object with, give an instruction that creates a new object of type FullName containing the name "Yu Huang."

Interaction diagrams in UML are used to represent the interactions of the user of a given program.

Getters and setters are methods providing controlled access to private instance variables.

There can be multiple levels of subclasses for a given class.

There are special methods in Python corresponding to both arithmetic and relational operators.

For a class named Money that stores a dollar and cent amount, give an appropriate __eq__ method that determines if two Money values are equal. (Note: the cent amount stored in Money objects is in the range 0 to 99.)

Special methods are predefined methods in Python that are automatically called, with names that begin and end with two ___________________ characters.

Duck typing, used in Python, refers to the fact that:

Give an appropriate __init__ method for a class named FullName that stores the first and last name of a given individual. Assume that the class contains (private) instance variables first_name and last_name.

The two methods that are implemented to display the value of a given object are named__________ and ___________.

Role names are used to describe an association between two classes.

For class FullName that contains an __init__ method that is passed a first and last name to construct a new object with, define a subclass of the FullName class named FullNamePlus that also stores a person's middle name. The subclass should include an __init__ method, getter/setter methods, and a __str__ methods that displays a name in the form lastname, firstname middlename. (Assume that class FullName contains getter methods accessing the first and last names.)